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Constructing a multi-junction structure by integrating homojunction and heterojunction is an effective strategy for adequate light absorption, effective charge separation and transfer of WO3 photoanodes.

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Improved electromechanical properties of NBR dielectric composites were achieved using poly(dopamine) and silane surface functionalized TiO2 nanoparticles.

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Inspired by unparalleled adhesion of mussels, bioinspired poly(dopamine) (PDA) has been used to functionalize the surface of aluminum oxide (Al 2 O 3 ) nanoparticles aiming at improving the thermal conductivity of silicone rubber (SR). The successful and effective preparation of PDA modified Al 2 O 3 nanoparticles (Al 2 O 3 −PDA) was confirmed by XPS, HR-TEM, and XRD. The PDA coating on the Al 2 O 3 nanoparticles improved its interfacial interaction between polymeric matrix and facilitated the uniform-dispersion of filler, leading to the 30 vol % Al 2 O 3 −PDA/SR composite that exhibited a high thermal conductivity (0.585 W/((m•K))), which was almost 400% of pure silicone rubber (0.147 W/(m•K)). In addition, the 30 vol % Al 2 O 3 −PDA/ SR composite displayed a relatively low dielectric constant (4.06 at 1 kHz), which was a bit higher than that of pure SR (2.59 at 1 kHz), a big advantage for the electronic or electrical engineering application. With advantages of efficient, easy handling, controllable, and eco-friendly, this modification method provides a new universal route to improve the thermal conductivity of composites.